Concrete insert



1,489,373 C. C, TOMKINSON CONCRETE INSERT Filed May 28 1921 liatented Apr. 8, 1924.

UNITED STATES CHARLES C. TOIVIKINSON, OF PLAINFIELD, NEW JERSEY, ASSIGNOR TO 3'.

PATENT ()FFIE.

EDWARD ocean, or MOUNTAINVILLE, oonnwnnn, NEW YORK.

CONCRETE INSERT.

Application filed May 28,

To all whom it may concern Be it known that I, (liar-inure C. ToMKIN- son, a citizen of the United States, and a resident of Plainfield, county of Union, and.

State of New Jersey, have invented certain new and useful Improvements in Concrete inserts (Case A), of whicn the following is a specification.

This invention relates to concrete inserts and has for its object the provision of a device of this character that shall be simple and rugged in construction and capable of manufacture at minimum cost.

The insert is preferably made of sheet metal and consists essentially of two U- shaped members which are secured in interlocked relation by novel means which include the nut which is contained within the compartment formed by said members.

For a complete understanding of the invention, reference should be had to the detailed description thereof in connection with the accompanying drawing forming part of this specification and in which- Fig. 1 is a side elevation of a concrete insert embodying the preferred form of the invention.

Fig. 2 is an end elevation of the same, a portion being broken away to expose the nut.

Fig. 3 is a plan view of the sheet metal blank making up the strap member of the insert.

Fig. & is a plan view of the sheet metal blank making up the shield member of the insert.

Fig. 5 is a bottom plan or face view of the insert shown in Figs. 1 and 2.

Fig. 6 is a section taken on the plane of line 6-6 on Fig. 1.

Like characters of reference indicate like parts throughout the several views.

10 indicates the U-shaped strap which forms one of the members of the insert and 11 the shield which cooperates therewith to form a closed compartment for the reception of the nut 12. The shield is disposed between the sides of the strap and has inturned terminals 13 upon which the nut 12 rests for a purpose that will presently a; pear.

The sides of the strap are spaced apart a distance equal to the distance between the flats 0f the nut as are the sides of the shield. The sides of the strap are, however, preferably somewhat wider than such distance 1921. Serial No. 473,236.

whereby there is provided, with respect to the shield, a marginal flange 1 1. At the bottom or face of the strap, this flange is cut or notched as at 15 to provide means through which nails may pass for positioning the in sert in the mold into which concrete is to be poured.

As already indicated, the nut is housed within the compartment formed by the strap and shield. The nut is prevented from dis placement outwardly, or away from the face or bottom of the strap, by means comprising a plurality of fingers 16 which extend from the sides of the strap 10 and overlie the nut.

These fingers not only serve to confine the nut in position but also serve to prevent the shield 11 from lateral displacement. iVhen a pair of fingers is provided on a side of the strap, they are spaced apart sufficiently to lie adjacent the side edges of the shield, the

fingers thus providing abutments which prevent lateral displacement of the shield. Vhile I prefer to provide a pair of fingers on each side of the strap, it will be understood that one finger on each side may be made to serve the purpose. In such event,

one finger would be disposed at one edge of the shield and the other finger at the diagonally opposite edge thereof.

Outward displacement of the shield is prevented by means of the angular terminals 13 which are disposed between the nut and face or bottom of the strap. This follows for the reason that the nut is prevented from such movement by means of the fingers 16 as will now be readily understood.

The end portions of the strap preferably flare outwardly as shown to enable the insert to be more firmly secured in the concrete in which it is embedded.

The strap has a central opening 20 with which the nut is coaxially arranged. The

depth of the nut compartment is such that plenty of clearance will be provided for the end of the bolt which is designed to cooperate with the nut 12.

From the above it will be seen that I have provided a concrete insert which is simple and rugged in construction, and not liable to get out of order. For the scope of the invention reference is to be had to the appended claims.

What I claim is:

1. In a concrete insert, the combination with a U-shaped strap, of a shield disposed between the sides of the strap, and forming therewith a compartment, a nut Within the compartment and means formed on and projecting inwardly from the inner surfaces of the strap for confining the nut against outward displacement and the shield against lateral displacement.

2. In a concrete insert, the combination with a U-shaped strap, of a shield disposed between the sides of the strap, and forming therewith a compartment, a nut within the compartment and fingers projecting from the sides of the strap, said fingers overlying the nut and arranged adjacent the sides of the shield,'whereby the nut and shield are held against displacement in opposite directions.

In a concrete insert, the combination with a U shaped strap, of a shield disposed between the sides of the strap and forming therewith a compartment, a nut within the compartment, means projecting from the strap above the nut for confining the latter against displacement in one direction and the shield in a direction at right angles thereto, and means on the shield cooperating with the nut for holding the shield against displacement in another direction.

4. In a concrete insert, the combination with a U-shaped strap, of a shield disposed between the sides of the strap and forming therewith a compartment, a nut within the compartment, inwardly-directed terminals on said shield disposed between the nut and bottom of the strap, and fingers extending from the strap above the nut for holding the latter against displacement within the compartment.

5.7111 a concrete insert, the combination with a U-shaped sheet metal strap, fingers stamped out from the sides of the strap, a shield disposed between the sides of the strap and "forming therewith aclosed compartment, a nut within said compartment and means securing the nut in fixed position relatively to the strap.

In witness whereof, I have hereunto set my hand this 18th day of May, 1921.

CHARLES C. TOMKINSON.

Witness I. B. Moons. 

